Band sawing machine



G. M. VAN RIPER. BandSaw ing-Machihe,

No. 223,964. Patented Jan. 27, 1880.

WITNESSES INVEN TOR W BY i I ORNEYS.

N,PETERS, PHOTO-UTHOGRAFHER. WASHINGTON, D. C

UNITED STATES PATENT OFFICE.

GARRIT'I M. VAN RIPER,

OF BODIE, CALIFORNIA.

BAND SAWING MACHINE.

srEcriEIcArrIoN forming part of Letters Patent No. 223,964, datedJanuary 2'7, 1880.

- Application filed September 5, 1879.

To all whom it may concern.

Be it known that I, GARRITCL M. VAN RIPER, of Bodie, in the county ofMono and State of California, have invented a new and Improved 5Sawing-Machine, of which the following is a specification.

My improvements relate to sawing machines for cross-cutting; and theinvention consists in a band-saw working on pulleys that are fit- Io tedmovably on vertical shafts, whereby the saw can be moved downward to outfrom the log two blocks at once.

The construction and operation of the machine will be. described withreference to the accompanying drawings, wherein Figure l is a plan viewof a sawingmachine embodying my invention. Fig. 2 is an end view of thesame.

Similar letters of reference indicate. corresponding parts.

A is the railway for the log-cairiage B, upon which carriage one end ofthe log rests, while s the other end is supported by the conical rollesof the shaft a, by means of which the log is moved forward to the saw asrequired.

In a suitable frame-work at opposite sides of the railway are fittedvertical shafts O (1, which have upon their upper ends pulleys I) forabelt, c, passing around thepulleys to conso meet the shafts, and uponone shaft, 0, is a pulley, l, to which the driving power of the saw willbe applied.

Upon each shaft 0 is a pulley, d, which is caused to turn with its shaftby a lug or feather, or by other desired means, which permit movement ofthe pulley endwisc of its shaft. Each pulley d is formed with a hubportion having a circumferential groove, in which enters the forked endof a yoke, e, that is suspended from a lever, f, and moves in a fixedguide, g. By means of lever f and the yoke e the pulleys d can besimultaneously raised and lowered while the machine is in operation, theband-saw h, which passes around pulleys d, being thereby also raised, topermit 5 adjustment of the log beneath, and lowered gradually as thecutting progresses. Two blocks may be cut from the log at once, and asuitable clamp or dog (not shown) will be used to hold the blocks inplace while the saw is being raised from the cut.

I have shown a worm-shaft, i, that is to be driven continuously,supported by a lever, k, for throwing the worm in or out of contact withthe wheel on shaft a, whereby the log and carriage B may be movedforward, as desired.

I do not limit myself to this arrangement, nor to the details ofconstruction otherwise, as they may be varied without departing from myinvention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a sawing-machine, the combination, with the logsupports and carriage, of the vertical shafts G, pulleys d, yoke e,lever f, and band-saw h, substantially as described and shown, and forthe purposes set forth.

2. In sawing-machines, the band-saw h and its pulleys (I, combined withthe driving-shafts, on which the pulleys are fitted for verticalmovement simultaneously by the means substantially as described andshown, and for the purposes set forth.

3. In sawing-machines, the vertical shafts O, pulleys d, yoke e, leverf, and band-saw h, combined for operating substantially as 'describedand shown, and for the purposes specified.

GARRITT MEAD VAN RIPER.

Witnesses:

P. T. TRACEY, JOHN FOLEY.

